Interactive practice questions
A higher distribution means that the scores are more spread out from the mean.
Consider the following graphs.
a
Select the graph with the highest standard deviation.
A
B
C
D
b
Select the graph with the lowest standard deviation.
A
B
C
D
Easy
< 1min
Find the standard deviation of the following set of scores by using the statistics mode on a calculator:
$81,90,90,88,73,80,86,87,75,82,70,81,71,81,79,81,80,86,88,79$81,90,90,88,73,80,86,87,75,82,70,81,71,81,79,81,80,86,88,79
Easy
2min
Find the standard deviation of the following set of scores by using the statistics mode on a calculator:
$20,44,27,25,21,28,41,24,27,39,35,43,30,17,40$20,44,27,25,21,28,41,24,27,39,35,43,30,17,40
Easy
1min
Use technology to determine the standard deviation for the data represented by the frequency table.
Medium
1min
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